MTA EXAM QUESTIONS AND ANSWERS | UPDATED | GRADED A

MTA EXAM QUESTIONS AND ANSWERS



HOW TO USE THE DIFFERENT FUNCTIONS WITHIN THE RANDOM LIBRARY -
Correct Answers -use:
from random import ___

use from random import randint when wanting to generate random integers

use
from random import randrange, lets you import a range of numbers and gives you a
random number within the numbers given. Ex: (1,6) -- gives a random number from 1 to
5

use
from random import rand

When declaring variables in Python, a data type must be specified

True of False - Correct Answers -false

Python makes the distinction between integers and floating variables.

True of False - Correct Answers -True

When setting a boolean variable, the value must start with a capital letter
True of False - Correct Answers -True, meaning it must begin with True or False

what are concatenation symbols - Correct Answers -commas if different data type and
plus signs if they are the same data type

improper syntax of way the varibles are written when declared - Correct Answers -
spaces and dashes should not be used when declaring variables

evaluate this statement:

a =5
b=3
b=a - Correct Answers -since b = a then a == b and b = 5 not 3 anymore, so a is b

, what keywork in python checks to seee if a number or text is available - Correct
Answers -the keyword "in" and then the name of the variable

code to print our letter grades of students - Correct Answers -def grades():
if score >=90: grade = 'A'
if score >=80: grade = 'B'
if score >=70: grade = 'C'
else:
grade = 'F'

WHAT keyword is used as a placeholder for a conditional result? - Correct Answers -
pass

the while keyword starts a ... - Correct Answers -loop

what does the continue keyword do - Correct Answers -skips a turn in the loop

difference between \ , \n ,\\, and \t - Correct Answers -the symbol \ tells python to
continue the statement on the next line

\n tell python to print a new line

\t tells python to insert a tab
\\ tells python to use the \ character

how to open a file and read it // without being able to write in it - Correct Answers -
variableName = open ('fileName', "r")
newVariableName = variableName.read()
print (newVariableName)

how to free up the memory that a file has been using after opening a file - Correct
Answers -using the example below:

variableName = open ('fileName', "r")
newVariableName = variableName.read()
print (newVariableName)

to close:
variableName.close()

How to get this file to only read the first line:

workFile = open('work.txt', 'r')
workFileFirstLine = __________?
print (workFileFirstLine) - Correct Answers -workFile.readline()